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Volume 26, Number 8—August 2020

Investigation and Serologic Follow-Up of Contacts of an Early Confirmed Case-Patient with COVID-19, Washington, USA

Victoria T. Chu1Comments to Author , Brandi Freeman-Ponder1, Scott Lindquist, Christopher Spitters, Vance Kawakami, Jonathan W. Dyal, Shauna Clark, Hollianne Bruce, Jeffrey S. Duchin, Chas DeBolt, Sara Podczervinski, Marisa D’Angeli, Kristen Pettrone, Rachael Zacks, Grace Vahey, Michelle L. Holshue, Misty Lang, Rachel M. Burke, Melissa A. Rolfes, Mariel Marlow, Claire M. Midgley, Xiaoyan Lu, Stephen Lindstrom, Aron J. Hall, Alicia M. Fry, Natalie J. Thornburg, Susan I. Gerber, Satish K. Pillai, and Holly M. Biggs
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (V.T. Chu, B. Freeman-Ponder, J.W. Dyal, Kristen Pettrone, R. Zacks, G. Vahey, M.L. Holshue, R.M. Burke, M.A. Rolfes, M. Marlow, C.M. Midgley, X. Lu, S. Lindstrom, A.J. Hall, A.M. Fry, N.J. Thornburg, S.I. Gerber, S.K. Pillai, H.M. Biggs); Washington State Department of Public Health, Shoreline, Washington, USA (S. Lindquist, C. DeBolt, S. Podczervinski, M. D’Angeli, M.L. Holshue, M. Lang); Snohomish Health District, Everett, Washington, USA (C. Spitters, H. Bruce); Public Health—Seattle and King County, Seattle, Washington (V. Kawakami, S. Clark, J.S. Duchin); University of Washington, Seattle (J.S. Duchin)

Main Article

Table 2

Demographic characteristics, clinical symptoms, and laboratory testing of PUIs for COVID-19 related to an early confirmed US COVID-19 case, Washington, USA, 2020*

Characteristic PUI, N = 8
Age, y, median (range)
41.5 (21–58)
M 2
Contact group
Office co-workers 2
Healthcare personnel 2
Waiting room contacts
Clinical symptoms
Days from last case-patient exposure to symptom onset, median (range) 5.5 (1–11)
Cough 6
Headache 5
Runny nose 5
Sore throat 4
Body aches 3
Fever 1
Chills 1
Shortness of breath
Laboratory testing
PUIs with respiratory specimens 8
PUIs with initial serum specimens 4
PUIs with follow-up serum specimens 5

*Values are no. persons except as indicated. COVID-19, coronavirus disease; PUIs, persons under investigation.

Main Article

1These authors contributed equally to this article.

Page created: May 12, 2020
Page updated: July 17, 2020
Page reviewed: July 17, 2020
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